Duster



FIG. 1 is a front view of an embodiment of a duster showing my new design;

FIG. 2 is a rear view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof; and,

FIG. 7 is a perspective view thereof.

The MAXIMOP PRO forming part of the claimed design is a trademark owned by Sponge-King Corporation Limited who is the assignee of the claimed design. 

The ornamental design for duster, as shown and described. 